Added preSelectSingleOption

src/lib/AsyncTypeaheadInput.tsx

@@ -33,6 +33,7 @@ interface AsyncTypeaheadInputProps<T extends FieldValues> extends CommonTypeahea
   defaultSelected?: TypeaheadOptions;
   inputRef?: RefObject<AsyncTypeaheadInputRef | null>;
   autocompleteProps?: AsyncTypeaheadAutocompleteProps;
+  preSelectSingleOption?: boolean;
 }
 
 const AsyncTypeaheadInput = <T extends FieldValues>(props: AsyncTypeaheadInputProps<T>) => {
@@ -75,10 +76,13 @@ const AsyncTypeaheadInput = <T extends FieldValues>(props: AsyncTypeaheadInputPr
     fixedOptions,
     withFixedOptionsInValue = true,
     fitMenuContent,
+    preSelectSingleOption = false,
   } = props;
 
   const [options, setOptions] = useState<TypeaheadOptions>(defaultOptions);
-  const [value, setValue] = useState<TypeaheadOptions>(defaultSelected);
+  const [value, setValue] = useState<TypeaheadOptions>(
+    defaultSelected.length > 0 ? defaultSelected : preSelectSingleOption && defaultOptions.length === 1 ? defaultOptions : [],
+  );
   const [page, setPage] = useState(1);
   const [loadMoreOptions, setLoadMoreOptions] = useState(limitResults !== undefined && limitResults < defaultOptions.length);
   const { name, id } = useSafeNameId(props.name ?? "", props.id);

src/lib/StaticTypeaheadInput.tsx

@@ -27,6 +27,7 @@ interface StaticTypeaheadInputProps<T extends FieldValues> extends CommonTypeahe
   options: TypeaheadOptions;
   isLoading?: boolean;
   autocompleteProps?: StaticTypeaheadAutocompleteProps;
+  preSelectSingleOption?: boolean;
 }
 
 const StaticTypeaheadInput = <T extends FieldValues>(props: StaticTypeaheadInputProps<T>) => {
@@ -66,6 +67,7 @@ const StaticTypeaheadInput = <T extends FieldValues>(props: StaticTypeaheadInput
     withFixedOptionsInValue = true,
     innerRef,
     fitMenuContent,
+    preSelectSingleOption = false,
   } = props;
 
   const [page, setPage] = useState(1);
@@ -91,7 +93,11 @@ const StaticTypeaheadInput = <T extends FieldValues>(props: StaticTypeaheadInput
     [limitResults, page, options],
   );
 
-  const fieldValue = watch(name) as string | number | string[] | number[] | undefined;
+  const defaultValue = useMemo(
+    () => (preSelectSingleOption && options.length === 1 ? (typeof options[0] === "string" ? options[0] : options[0]?.value) : undefined),
+    [preSelectSingleOption, options],
+  );
+  const fieldValue = watch(name, defaultValue) as string | number | string[] | number[] | undefined;
   const value = useMemo(
     () =>
       multiple

src/lib/helpers/typeahead.tsx

@@ -21,8 +21,16 @@ const convertAutoCompleteOptionsToStringArray = (options: TypeaheadOptions | und
   return (options as LabelValueOption[]).map((option) => option.value) as string[];
 };
 
-const getSingleAutoCompleteValue = (options: TypeaheadOptions, fieldValue: string | number | undefined): TypeaheadOptions => {
+const getSingleAutoCompleteValue = (
+  options: TypeaheadOptions,
+  fieldValue: string | number | undefined,
+  defaultOption: TypeaheadOptions = [],
+): TypeaheadOptions => {
   if (fieldValue === undefined) {
+    if (defaultOption.length > 0) {
+      return defaultOption;
+    }
+
     return [];
   }